Merge branch 'rickard/warning_fixes' into maint

* rickard/warning_fixes:
  Fix variable ‘rp_had_locks’ set but not used warning
  Fix ‘ethr_native_rwlock_destroy’ defined but not used warning
  Fix 'no previous prototype' warning for dtrace functions

3 files changed, 9 insertions, 8 deletions

diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c
index d4c2b5bdcc..48f8be8dd3 100644
--- a/erts/emulator/beam/erl_nif.c
+++ b/erts/emulator/beam/erl_nif.c
@@ -310,9 +310,6 @@ int enif_send(ErlNifEnv* env, const ErlNifPid* to_pid,
     Process* rp;
     Process* c_p;
     ErlHeapFragment* frags;
-#if defined(ERTS_ENABLE_LOCK_CHECK) && defined(ERTS_SMP)
-    ErtsProcLocks rp_had_locks;
-#endif
     Eterm receiver = to_pid->pid;
     int flush_me = 0;
     int scheduler = erts_get_scheduler_id() != 0;
@@ -332,10 +329,6 @@ int enif_send(ErlNifEnv* env, const ErlNifPid* to_pid,
 #endif
     }    
 
-#if defined(ERTS_ENABLE_LOCK_CHECK) && defined(ERTS_SMP)
-    rp_had_locks = rp_locks;
-#endif
-
     rp = (scheduler
 	  ? erts_proc_lookup(receiver)
 	  : erts_pid2proc_opt(c_p, ERTS_PROC_LOCK_MAIN,
diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h
index e5807b5ce6..2eec15867d 100755
--- a/erts/emulator/beam/global.h
+++ b/erts/emulator/beam/global.h
@@ -1219,6 +1219,13 @@ erts_alloc_message_heap(Uint size,
 #  define UnUseTmpHeapNoproc(Size) /* Nothing */
 #endif /* HEAP_ON_C_STACK */
 
+ERTS_GLB_INLINE void dtrace_pid_str(Eterm pid, char *process_buf);
+ERTS_GLB_INLINE void dtrace_proc_str(Process *process, char *process_buf);
+ERTS_GLB_INLINE void dtrace_port_str(Port *port, char *port_buf);
+ERTS_GLB_INLINE void dtrace_fun_decode(Process *process,
+				       Eterm module, Eterm function, int arity,
+				       char *process_buf, char *mfa_buf);
+
 #if ERTS_GLB_INLINE_INCL_FUNC_DEF
 
 #include "dtrace-wrapper.h"
diff --git a/erts/include/internal/ethread.h b/erts/include/internal/ethread.h
index ab728c65fa..407097d4b1 100644
--- a/erts/include/internal/ethread.h
+++ b/erts/include/internal/ethread.h
@@ -411,6 +411,7 @@ extern ethr_runtime_t ethr_runtime__;
 
 #ifdef VALGRIND  /* mutex as fallback for spinlock for VALGRIND */
 #  undef ETHR_HAVE_NATIVE_SPINLOCKS
+#  undef ETHR_HAVE_NATIVE_RWSPINLOCKS
 #else
 #  include "ethr_optimized_fallbacks.h"
 #endif
@@ -693,7 +694,7 @@ static ETHR_INLINE int
 ETHR_INLINE_FUNC_NAME_(ethr_rwlock_destroy)(ethr_rwlock_t *lock)
 {
 #ifdef ETHR_HAVE_NATIVE_RWSPINLOCKS
-    return 0;
+    return ethr_native_rwlock_destroy(lock);
 #else
     return ethr_rwmutex_destroy((ethr_rwmutex *) lock);
 #endif